J/30 Class Association Forums J/30 Forum The Boat, Sails and Equipment 2GM Motor Fuse

Dan - some follow up questions..

• Have you had the problem since replacing the fuse and socket? If not, problem solved.
• Do you know the draw on the Halogen lamps? I think they are 20 Watts which equates to 1.7 amps each. If so, there are 8 lights in the cabin on Rhapsody, so that's 13.6 amps just for lighting.
• What kind of pump/motor is it, and is there a label listing current drain? I suspect it has a high current draw since the lights flicker, or you have a high resistance connection in the supply or return circuit between the DC power panel and the battery. (e.g. bad contacts on the switch, corroded terminals, poor fuse connections, wire has degraded over time in marine environment)
• Rhapsody has manual pumps in the water system, so no electrical issues.

I know my Nav lights eat up battery. When delivering Rhapsody back from Westport, I ran the nav lights for 4 hours on one battery, then had to put the battery switch on "All" to start the Yanmar and charge the battery.